Results of test score are normally distributed with a mean μ=160 and a standard deviation σ=12. What is the probability that mean score of 36 randomly selected students will be between 161 and 164?

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# Results of test score are normally distributed with a mean =160 and a standard deviation =12. What is the probability that mean score of 36 randomly

Results of test score are normally distributed with a mean μ=160 and a standard deviation σ=12. What is the probability that mean score of 36 randomly selected students will be between 161 and 164?